Water-sterilizer.



e. H. NOBLE.

WATER STERILIZER.

APPLICATION FILED APR. 15 I933- haw) I E//,%4Q

' 7 A nationnie A r11i5,-1913.,-seria1 No; 761,198.; 1.

Gadgets; sasi jesre mm eEbs I'A, rss1eso3 eqrm cmmmmzss a conm g r slam,nnsvtvaumi "QO B R IION F PENNSYLVANIA 1 Z a all I Z Be it known that I,I GEOR E NOBLE, a

' citizeniof the United States, residing, at At lanta, inthe "county ofFulton and State of- Georgia, have. invented-new, and usefulImprovementsin ".Water-Sterilizers of which:

the following is a specification. r

' and consists in certain improvements the construction thereof as Wlllbe here n after fully described and pointed out ing the @One ofthedijficiilties encountered water sterilizers asheretofore made hasbeen to prevent the, sterilized; Water from coming incontact with; the.unsterili zed medium. It will-be undeirst'oodthat as 'the watereiswithdrawn from the receptacle 7 in which the sterilized water is storedthere -is a. tendencytoform a vacuum or partial vacuum in the receptacleunless :some means is provided to. i prevent this condition. i 'It' willbe readily understood that if such a a {condition 7 does exist the airpressurewithoutthe ;receptacle will soon .prevent the{discharge.of,water from the receptacle. I;T -he principalfob ecti .of thisinvention lSftO overcome the, diflicul,- ties just enumerated, that is;to .maintain a pressure .on' the sterilized water; so that it will .bereadily discharged from the=. ;recep-; tacle and. at the same; timepreventa contactofthe sterilized .waterwith an unsterilizedmediuin'..

The inventionisiillustrated the accompanying ."drawing showing myimproved apthe hospital and may be of any convenient pressure usually'varying from thirty' five to one hundred pounds.

' 8. The condensed water which, of course, is

' sterilized as well through this heat, passes by way of the pipe 9 tothe receptacle 1 or by the pipe 10 tothe receptacle 2.

These tanks are The steam is *con; trolled by a valve 4* and passes to acondensing coil 5 arranged in a receptacle 6. This Y is reaa afivov. 13519 17 1 .ceptacle 2 by meansofaafaucet 12. U

and {thewastepipe 1 5,extends to=the top of Qold water is admitted fromthepipe 5';

This discharges at 14 into the receptaclefi 160 thereceptacle 6 sothatthereis'a circulation: The invention Prelates to water; sterilizersfrom the bottom of the receptacle -6. This tacle 1 is lowered :;to thedegree, desired. A

blow-off or .drain pipe 23 is supplied for-the with a-valve'l3i; Adrainpipeloextenfdsl;

drain .pipe is controlledgby the valve17;

- A; pipe18 extends from .thewater pipe 13J andl'eads to a cooling coil19 inthe.recep'- tacle 1. The pipe 18 is .controlledbya valve 19jand.the coil 19 discharges by; Way ofja pipe 20 and pipe 21 to thedischarge-pipe l 5.-

.The;pipe2O is controlled by a valve 22.; Bythe .-circulation of Waterthrough ,th is=-coil- 19 the temperature ofthewater in the recepjreceptacle 1. It leads to the pipe 21 which 1;

is controlled by a valve, 2 1.- The. pipe 25 leadsfronrthe steam pipe 4to a coil 26 in the receptacle2. The pipe 2 5,-is controlled f' by a.valve 27. .A valve 28 is arranged at the opposite-end of'the coil 26.-z By means of j rthisvheating Coil the" temperature .ofuthe}: t

waterin. the receptacle 2 may be maintained p 7 at ,any point desired,thetank 2 being for hot water and the tank'l for cold water.;; Ablow'offp'ipe 29 is provided for the rec'epj:

tacle. 2.; This is controlled by the valve The blow-.ofl pipe;29connects Wllllflzth disparatus in elevation wherein 1; marksf1the; 5

charge-for waste pipe 15.

. 3, Each of the-receptacles is supplied with;

the usual. safety-afalve 31, air valve; 32 and pressure gage '33.Theidea'of 'theairvalve is tojallowxthe escape of the air trapped in thereceptacle with theinitial filling of the receptacle. These .parts areof ordinary construction.

f I :A'steam pipe 34 leads from the pipe 4; and

by way of the branch pipes 35 and 36 to the fittings 37 connectingthe'receptacles 1 and 2 with the safety valves. By Way ofthese" passagessteam is delivered to the tops of the receptacles and supplies asterilized medium:

which exerts pressure on the surface of the water so that there will bea free discharge of the water from thetfaucets. Whatever condensationthere is of the steam supplying this pressure and thus preventing the fformation of a vacuum forms. apart'iofithei; accumulation of sterilizedwater.

Ordinarily it is not desirable to have the full'steam pressure on the.receptacles and therefore it is desirable to control the flow of steamfrom the main steam supply. to the receptacles and this may be done by avalve 38.7 Iprefer that this valve be. in. the form of a reducing valveof ordinary construction which will reduce the pressure on thereceptacles to one or two pounds. This willassure a-bre'aking ofthe-vacuum under all conditions and give amild pressure at the faucetsand it also relieves'the receptacles of the-high pressure which may bein' the line.

In the operation of the device steam enters by way of the pipe at and-iscondensed in thecoil 5 anddelivered to the receptacles by way of thethree-way valve. Bythe operation of this valvethe sterilized water maybe delivered to bothreceptacles'orto either or shut-oil entirely. Steamis delivered to the receptacles byway of the reducing valve 38. In thisway a sterilized medium is on the water in the receptacles at all times.T he water in the receptacle 1 iscooled by the coil 19 and heated in thereceptacle 2 by the coil' 26. Notwithstanding the presence of steam overthe surface of the water in'the receptacle 1 there is no difficulty inmaintaining the water in this receptacle at as low temperature as isordinarily desired.

What I claim as new is 1. In a water sterilizer, the combination of aclosed receptacle in which sterilized water is stored and from which itis drawn; means for supplying steam by which the sterilized water isformed; anda by-pass from said steam supply to the receptacle wherebyair is excluded from the receptacleand a vacuum prevented.

2. In a water sterilizer, the combination of a closed receptacle inwhich sterilized water is stored and from which it is drawn; means forsupplying steam by which the sterilized water is formed; a by-pass fromsaid steam supply to the receptacle'wherebyair is excluded fromthereceptacle and a vacuum prevented; and a valve controllingthe bypass.

Qopies of this patent may be obtained forfive centseach: by addrcssingithg; Commissioner; 'ol' latentg of a closedreceptacle in whichsterilizedwater is-stored a-nd from which} it is drawn;

means for supplying steam; a condenser for condensing the steamaconnection-between the condenser and the receptacle-for-- conveyingcondensed "water to the receptacle; a bypass from the -steamsupply= tothereceptacle whereby air is excluded and a vacuum 1 prevented and i avalve controlling the =bypass=- 5'.- In awater sterilizer, thecombination of a closed receptacle in which sterilized water is storedand from which it is drawn for use; means for supplyingsteam by whichthe sterilized water is formed; aby: pass from said steam=supplyto-thereceptacle whereby air is excludedfronr the receptacle and avacuum prevented as the water is drawn off; and a-reducing valve onsaidbypass for reducing the pressure of the-steam supply to thereceptacle.

6'. In a water sterilizer, thecomb'ination of a closedreceptacle in=WlI1ClI sterilized water 1s storedand from which 1t isdrawn for use;means for-supplying steam; a con denser for COIlClIlSlIlglhGStGflIIl; aconnectionbetween the condenser and the receptacle for conveying thecondensed water to the receptacle; a'bypass from the steam-supply to thereceptacle wherebyfiair iseXcl-uded and a vacuum prevented; and r areducing valve: on said bypass for reducing theipressure of the steamsupply to the receptacle;

In testimony whereof Ihave hereunto set my hand in the presence of; twosubscribe ing witnesses GEO. H; NOBLE,

Witnesses Lows Esrns;

BENTLEY:

Washington, use.

